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  • 11
    Electronic Resource
    Electronic Resource
    Visual pattern recognition in Drosophila involves retinotopic matching (1993)
    [s.l.] : Nature Publishing Group
    Nature 365 (1993), S. 751-753 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Flies were attached to a torque meter with their heads immobilized, and allowed to control with their yaw torque the angular velocity of a vertical drum surrounding them (Fig. 1). The internal surface of the drum was covered with either a 2 x 180° random-dot texture or four regularly spaced ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/365751a0
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    Paper (German National Licenses)
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  • 12
    Electronic Resource
    Electronic Resource
    Context generalization in Drosophila visual learning requires the mushroom bodies (1999)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 400 (1999), S. 753-756 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The world is permanently changing. Laboratory experiments on learning and memory normally minimize this feature of reality, keeping all conditions except the conditioned and unconditioned stimuli as constant as possible. In the real world, however, animals need to extract from the universe ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/23456
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  • 13
    Electronic Resource
    Electronic Resource
    Experimental psychology Event timing turns punishment to reward (2004)
    [s.l.] : Nature Publishing Group
    Nature 430 (2004), S. 983-983 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Can relief from pain be a pleasure? If so, noxious events should — despite their typically aversive effects — also have a ‘rewarding’ after-effect. Through training fruitflies by using an electric shock paired with an odour, we show here that the shock can condition ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/430983a
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  • 14
    Electronic Resource
    Electronic Resource
    Distinct memory traces for two visual features in the Drosophila brain (2006)
    [s.l.] : Nature Publishing Group
    Nature 439 (2006), S. 551-556 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The fly Drosophila melanogaster can discriminate and remember visual landmarks. It analyses selected parts of its visual environment according to a small number of pattern parameters such as size, colour or contour orientation, and stores particular parameter values. Like humans, flies recognize ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature04381
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    Paper (German National Licenses)
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  • 15
    Electronic Resource
    Electronic Resource
    Polarization sensitivity of course control inDrosophila melanogaster (1980)
    Springer
    Journal of comparative physiology 139 (1980), S. 177-191 
    Details
    ISSN: 1432-1351
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary InDrosophila polarization sensitivity as revealed in optomotor experiments is mediated by retinula cells R1–6. In the optomotor turning response of the walking fly the response amplitude is a sinusoidal function of E-vector orientation of the stimulus light. For the effect to occur the area of the visual field in which moving vertical stripes are presented must be embedded in an illuminated surround which covers a large part of the visual field. The phase and amplitude of this sinus function do not reflect directly the polarization sensitivity of the photoreceptors mediating it since a) the amplitude is much larger than could be expected from the measured properties of fly retinula cells, b) the effect can be elicited in parts of the visual field viewed by photoreceptors of which half are oriented in mirror symmetry to the other half (equator, frontal area), c) presentation of the stimulus to either eye (at the same height) does not lead to a phase shift in the sinus functions. (A phase shift of 90 ° would be expected in our experiments if the response reflected the fly's bilateral symmetry.) The data suggest that the fly has an “inner” representation of E-vector orientation. In a closed loop situation in which the fly is illuminated from above by linearly polarized light and is allowed to turn the orientation of the E-vector plane relative to its body axis by its yaw torque it can maintain its optomotor balance (i.e. it can fly straight). Often flies keep their longitudinal body axis roughly parallel or perpendicular to the E-vector plane during the whole experiment (4 min). Flies perform discrete 360 °-loops although the rotating polarizing filter has a 180 ° period. Viewed in the context of the first experiment this observation suggests that the fly, like the bee, evaluates the polarization pattern as a whole and designs its loons accordingly. At least on clear daysDrosophila can make use of the polarization pattern of the free sky in flight orientation. Polarization sensitivity is not restricted to the upper part of the eye: Also with the lower part the fly can use a polarization pattern for course control.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00657080
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  • 16
    Electronic Resource
    Electronic Resource
    Initiale Aktivität und Willkürverhalten bei Tieren (1983)
    Springer
    Naturwissenschaften 70 (1983), S. 70-78 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Notes: Abstract Initiation as a basic property of behavioral activity is functionally analyzed and discussed at the level of voluntary behavior. Fixed action patterns often are not released by stimuli but are generated by the animal itself through brain processes of the Darwinian type. Analogous to mutations, behavioral “subroutines” are brought up by chance and are subjected to selection either by the change in the situation (trial and the elimination of error) or by mental activity suppressing inappropriate behavior even before it is executed.Initiation improves the chance of survival. It is a prerequisite of goal-oriented behavior, an essential constituent of operant conditioning and presumably the first step in the evolution of thought. According to I. Kant a person is free if, by following his own directive, he does what has to be done. This definition meets the two central criteria of initiation: the independence of releasing stimuli and the adaptive value of the behavior generated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00365500
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  • 17
    Electronic Resource
    Electronic Resource
    Genetic approach to neuroethology (1997)
    New York, NY : Wiley-Blackwell
    BioEssays 19 (1997), S. 1065-1073 
    Details
    ISSN: 0265-9247
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: In neuroethology, the nervous system and behavior are analyzed in the context of the animal's natural habitat and evolutionary history. For the last 30 years the influence of genetics on neuroethology has steadily grown, particularly in Drosophila. Genetic variants reveal new properties of neurons; they help to dissect neuronal circuits and complex behavioral systems; genetics provides new methods to visualize certain brain structures and to assign behavioral functions to them; and, finally, genetic variants can be used to test ecological models. While single-gene mutations can have highly specific behavioral effects, molecular analysis of the corresponding genes reveals that the latter normally have a much broader functional scope. The ‘graininess’ of a functional model of the brain, therefore, is defined by the independent regulatory units of the genes rather than by the genes themselves.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bies.950191205
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  • 18
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    A Quantitative Three-Dimensional Model of the Drosophila Optic Lobes (1999)
    Details
    Publication Date: 2022-07-19
    Language: English
    Type: article , doc-type:article
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    OPUS
  • 19
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    A Quantitative 3D Model of the Flybrain: Shape and Arrangement of Neuropils (1999)
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    Publication Date: 2022-07-19
    Language: English
    Type: conferenceobject , doc-type:conferenceObject
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    OPUS
  • 20
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    The Drosophila Standard Brain (2002)
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    Publication Date: 2022-07-19
    Language: English
    Type: article , doc-type:article
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